1516 Commits

Author SHA1 Message Date
Greg Kroah-Hartman
1622d35453 Merge 5.9-rc5 into staging-next
We want the staging/iio changes in here as well.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-09-14 06:57:52 +02:00
Linus Torvalds
6c7247f625 Staging / IIO driver fixes for 5.9-rc5
Here are a number of Staging and IIO driver fixes for 5.9-rc5.
 
 The majority of these are IIO driver fixes, to resolve a timestamp issue
 that was recently found to affect a bunch of IIO drivers.
 
 The other fixes in here are:
 	- small IIO driver fixes
 	- greybus driver fix
 	- counter driver fix (came in through the IIO fixes tree)
 
 All of these have been in linux-next for a while with no reported
 issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'staging-5.9-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging

Pull staging/IIO driver fixes from Greg KH:
 "Here are a number of staging and IIO driver fixes for 5.9-rc5.

  The majority of these are IIO driver fixes, to resolve a timestamp
  issue that was recently found to affect a bunch of IIO drivers.

  The other fixes in here are:

   - small IIO driver fixes

   - greybus driver fix

   - counter driver fix (came in through the IIO fixes tree)

  All of these have been in linux-next for a while with no reported
  issues"

* tag 'staging-5.9-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (23 commits)
  iio: adc: mcp3422: fix locking on error path
  iio: adc: mcp3422: fix locking scope
  iio: adc: meson-saradc: Use the parent device to look up the calib data
  iio:adc:max1118 Fix alignment of timestamp and data leak issues
  iio:adc:ina2xx Fix timestamp alignment issue.
  iio:adc:ti-adc084s021 Fix alignment and data leak issues.
  iio:adc:ti-adc081c Fix alignment and data leak issues
  iio:magnetometer:ak8975 Fix alignment and data leak issues.
  iio:light:ltr501 Fix timestamp alignment issue.
  iio:light:max44000 Fix timestamp alignment and prevent data leak.
  iio:chemical:ccs811: Fix timestamp alignment and prevent data leak.
  iio:proximity:mb1232: Fix timestamp alignment and prevent data leak.
  iio:accel:mma7455: Fix timestamp alignment and prevent data leak.
  iio:accel:bmc150-accel: Fix timestamp alignment and prevent data leak.
  iio:accel:mma8452: Fix timestamp alignment and prevent data leak.
  iio: accel: kxsd9: Fix alignment of local buffer.
  iio: adc: rockchip_saradc: select IIO_TRIGGERED_BUFFER
  iio: adc: ti-ads1015: fix conversion when CONFIG_PM is not set
  counter: microchip-tcb-capture: check the correct variable
  iio: cros_ec: Set Gyroscope default frequency to 25Hz
  ...
2020-09-13 09:15:20 -07:00
Krzysztof Kozlowski
a5c69204da iio: adc: stm32: Fix missing return in booster error path
Conversion of error paths to dev_err_probe() dropped one return
statement.  The driver will continue to probe if getting booster
regulator fails.

Fixes: ce30eeb613cb ("iio: adc: stm32: Simplify with dev_err_probe()")
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Link: https://lore.kernel.org/r/1599727927-7776-1-git-send-email-krzk@kernel.org
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2020-09-13 10:43:55 +01:00
Bartosz Golaszewski
750628c79b iio: adc: xilinx-xadc: use devm_krealloc()
Use the managed variant of krealloc() and shrink the code a bit.

Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Acked-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Link: https://lore.kernel.org/r/20200824173859.4910-4-brgl@bgdev.pl
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-09-08 13:32:07 +02:00
Alex Dewar
aa06b6f4d8 iio: adc: rockchip_saradc: Allow compile-testing with !ARM
There seems no reason to allow for compile-testing on ARM only, so
remove this restriction.

Build-tested with allyesconfig on x86.

Signed-off-by: Alex Dewar <alex.dewar90@gmail.com>
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Link: https://lore.kernel.org/r/20200904170416.16061-1-alex.dewar90@gmail.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2020-09-06 16:13:40 +01:00
Krzysztof Kozlowski
ce30eeb613 iio: adc: stm32: Simplify with dev_err_probe()
Common pattern of handling deferred probe can be simplified with
dev_err_probe().  Less code and also it prints the error value.

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Link: https://lore.kernel.org/r/20200829064726.26268-8-krzk@kernel.org
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2020-09-03 19:40:50 +01:00
Krzysztof Kozlowski
6d2710ce2c iio: adc: rcar-gyroadc: Simplify with dev_err_probe()
Common pattern of handling deferred probe can be simplified with
dev_err_probe().  Less code and also it prints the error value.

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Link: https://lore.kernel.org/r/20200829064726.26268-7-krzk@kernel.org
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2020-09-03 19:40:49 +01:00
Krzysztof Kozlowski
a3e584fab6 iio: adc: meson_saradc: Simplify with dev_err_probe()
Common pattern of handling deferred probe can be simplified with
dev_err_probe().  Less code and also it prints the error value.

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Acked-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Link: https://lore.kernel.org/r/20200829064726.26268-6-krzk@kernel.org
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2020-09-03 19:40:49 +01:00
Krzysztof Kozlowski
291cb0b37a iio: adc: ltc2497: Simplify with dev_err_probe()
Common pattern of handling deferred probe can be simplified with
dev_err_probe().  Less code and also it prints the error value.

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Link: https://lore.kernel.org/r/20200829064726.26268-5-krzk@kernel.org
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2020-09-03 19:40:49 +01:00
Krzysztof Kozlowski
1030b5bc68 iio: adc: exynos_adc: Simplify with dev_err_probe()
Common pattern of handling deferred probe can be simplified with
dev_err_probe().  Less code and also it prints the error value.

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Link: https://lore.kernel.org/r/20200829064726.26268-4-krzk@kernel.org
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2020-09-03 19:40:49 +01:00
Krzysztof Kozlowski
55dc295200 iio: adc: envelope-detector: Simplify with dev_err_probe()
Common pattern of handling deferred probe can be simplified with
dev_err_probe().  Less code and also it prints the error value.

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Acked-by: Peter Rosin <peda@axentia.se>
Link: https://lore.kernel.org/r/20200829064726.26268-3-krzk@kernel.org
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2020-09-03 19:40:49 +01:00
Tian Tao
f6712ed711 iio: adc: adi-axi-adc: Use kobj_to_dev() instead of container_of()
Use kobj_to_dev() instead of container_of()

Signed-off-by: Tian Tao <tiantao6@hisilicon.com>
Acked-by: Alexandru Ardelean <alexandru.ardelean@analog.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2020-09-03 19:40:47 +01:00
Jonathan Cameron
81f434f017 iio:adc:axp20x: Convert from OF to generic fw / device properties
Whilst fairly unlikely anyone will ever use this driver with anything
other than DT, we are trying to move IIO over to the generic interfaces
where easy to do so.

In this case this involved moving to generic check on presence
of fwnode, generic device_get_match_data() and dropping the of_match_ptr
protection.  Also relevant header changes to have property.h and
mod_devicetable.h only.

Also drop the casting away of a const in favour of retaining
the const throughout.

Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Cc: Quentin Schulz <quentin.schulz@bootlin.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
2020-09-03 19:40:46 +01:00
Jonathan Cameron
c458b7ca3f iio:adc:ti-adc081c: Drop ACPI ids that seem very unlikely to be official.
We have no known users of these in the wild.
it seems very unlikely these are real IDs having the form ADCXXXX
as that ID is owned by Achnor Datacomm not TI.

Suggested-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
2020-09-03 19:40:45 +01:00
Jonathan Cameron
0a4596f5bd iio:adc:ti-adc108s102: Drop CONFIG_OF and of_match_ptr protections
I'm trying to clean this (now) anti-pattern out of IIO to avoid
cut and paste into new drivers.

Also add an include of mod_devicetable.h as the driver directly uses
struct of_device_id which is defined in there.

Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Cc: Jan Kiszka <jan.kiszka@siemens.com>
2020-09-03 19:40:45 +01:00
Jonathan Cameron
ad5bd081c6 iio:adc:ti-adc128s052: drop of_match_ptr protection
There is no real advantage in having these protections and
for parts that do not have an explicit ACPI ID, it prevents the
use of PRP0001. I'm trying to clear this out of IIO in general
to avoid copying in new drivers.

Include mod_devicetable.h as we are using of_device_id in here so
including that header is best practice.

Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Cc: Angelo Compagnucci <angelo.compagnucci@gmail.com>
2020-09-03 19:40:45 +01:00
Jonathan Cameron
245d56d75e iio:adc:bcm_iproc: Drop of_match_ptr protection and switch to mod_devicetable.h
This driver cannot be instantiated from ACPI due to it's use of
syscon_regmap_lookup_by_phandle() but in the interests of clearing
this anti pattern out of IIO, let us switch to an explicit
check in Kconfig and remove the protections on the of_match_table
The switch of header is because we only use of_device_id
in here and that is defined in mod_devicetable.h not of.h.

Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Cc: Raveendra Padasalagi <raveendra.padasalagi@broadcom.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
2020-09-03 19:40:45 +01:00
Angelo Compagnucci
a139ffa40f iio: adc: mcp3422: fix locking on error path
Reading from the chip should be unlocked on error path else the lock
could never being released.

Fixes: 07914c84ba30 ("iio: adc: Add driver for Microchip MCP3422/3/4 high resolution ADC")
Fixes: 3f1093d83d71 ("iio: adc: mcp3422: fix locking scope")
Acked-by: Jonathan Cameron <jonathan.cameron@huawei.com>
Signed-off-by: Angelo Compagnucci <angelo.compagnucci@gmail.com>
Link: https://lore.kernel.org/r/20200901093218.1500845-1-angelo.compagnucci@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-09-01 16:08:07 +02:00
Angelo Compagnucci
3f1093d83d iio: adc: mcp3422: fix locking scope
Locking should be held for the entire reading sequence involving setting
the channel, waiting for the channel switch and reading from the
channel.
If not, reading from a channel can result mixing with the reading from
another channel.

Fixes: 07914c84ba30 ("iio: adc: Add driver for Microchip MCP3422/3/4 high resolution ADC")
Signed-off-by: Angelo Compagnucci <angelo.compagnucci@gmail.com>
Link: https://lore.kernel.org/r/20200819075525.1395248-1-angelo.compagnucci@gmail.com
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2020-08-31 10:47:53 +01:00
Martin Blumenstingl
d53bfdf2f0 iio: adc: meson-saradc: Use the parent device to look up the calib data
On the older-gen 32-bit SoCs the meson-saradc driver is used to read the
SoC temperature. This requires reading calibration data from the eFuse.

Looking up the calibration data nvmem-cell requires the OF device_node
pointer to be available in the struct device which is passed to
devm_nvmem_cell_get(). This however got lost with commit 8cb631ccbb1952
("iio: Remove superfluous of_node assignments") from indio_dev->dev. As
devm_nvmem_cell_get() is called in the initialization phase the
device_node is not yet available because the NVMEM cell is looked up
before iio_device_register() is called (which would then set the
device_node automatically).
Use the parent device to look up the NVMEM cell instead to fix this
issue.

Fixes: 8cb631ccbb1952 ("iio: Remove superfluous of_node assignments")
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2020-08-31 10:47:52 +01:00
Jonathan Cameron
db8f06d97e iio:adc:max1118 Fix alignment of timestamp and data leak issues
One of a class of bugs pointed out by Lars in a recent review.
iio_push_to_buffers_with_timestamp assumes the buffer used is aligned
to the size of the timestamp (8 bytes).  This is not guaranteed in
this driver which uses an array of smaller elements on the stack.
As Lars also noted this anti pattern can involve a leak of data to
userspace and that indeed can happen here.  We close both issues by
moving to a suitable structure in the iio_priv() data.

This data is allocated with kzalloc so no data can leak apart
from previous readings.

The explicit alignment of ts is necessary to ensure correct padding
on architectures where s64 is only 4 bytes aligned such as x86_32.

Fixes: a9e9c7153e96 ("iio: adc: add max1117/max1118/max1119 ADC driver")
Reported-by: Lars-Peter Clausen <lars@metafoo.de>
Cc: Akinobu Mita <akinobu.mita@gmail.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Cc: <Stable@vger.kernel.org>
2020-08-31 10:47:52 +01:00
Jonathan Cameron
f8cd222feb iio:adc:ina2xx Fix timestamp alignment issue.
One of a class of bugs pointed out by Lars in a recent review.
iio_push_to_buffers_with_timestamp assumes the buffer used is aligned
to the size of the timestamp (8 bytes).  This is not guaranteed in
this driver which uses a 32 byte array of smaller elements on the stack.
As Lars also noted this anti pattern can involve a leak of data to
userspace and that indeed can happen here.  We close both issues by
moving to a suitable structure in the iio_priv() data with alignment
explicitly requested.  This data is allocated with kzalloc so no
data can leak apart from previous readings. The explicit alignment
isn't technically needed here, but it reduced fragility and avoids
cut and paste into drivers where it will be needed.

If we want this in older stables will need manual backport due to
driver reworks.

Fixes: c43a102e67db ("iio: ina2xx: add support for TI INA2xx Power Monitors")
Reported-by: Lars-Peter Clausen <lars@metafoo.de>
Cc: Stefan Brüns <stefan.bruens@rwth-aachen.de>
Cc: Marc Titinger <mtitinger@baylibre.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Cc: <Stable@vger.kernel.org>
2020-08-31 10:47:52 +01:00
Jonathan Cameron
a661b571e3 iio:adc:ti-adc084s021 Fix alignment and data leak issues.
One of a class of bugs pointed out by Lars in a recent review.
iio_push_to_buffers_with_timestamp assumes the buffer used is aligned
to the size of the timestamp (8 bytes).  This is not guaranteed in
this driver which uses an array of smaller elements on the stack.
As Lars also noted this anti pattern can involve a leak of data to
userspace and that indeed can happen here.  We close both issues by
moving to a suitable structure in the iio_priv().

This data is allocated with kzalloc so no data can leak apart from
previous readings.

The force alignment of ts is not strictly necessary in this case
but reduces the fragility of the code.

Fixes: 3691e5a69449 ("iio: adc: add driver for the ti-adc084s021 chip")
Reported-by: Lars-Peter Clausen <lars@metafoo.de>
Cc: Mårten Lindahl <martenli@axis.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Cc: <Stable@vger.kernel.org>
2020-08-31 10:47:52 +01:00
Jonathan Cameron
54f82df2ba iio:adc:ti-adc081c Fix alignment and data leak issues
One of a class of bugs pointed out by Lars in a recent review.
iio_push_to_buffers_with_timestamp assumes the buffer used is aligned
to the size of the timestamp (8 bytes).  This is not guaranteed in
this driver which uses an array of smaller elements on the stack.
As Lars also noted this anti pattern can involve a leak of data to
userspace and that indeed can happen here.  We close both issues by
moving to a suitable structure in the iio_priv().

This data is allocated with kzalloc so no data can leak apart
from previous readings.

The eplicit alignment of ts is necessary to ensure correct padding
on x86_32 where s64 is only aligned to 4 bytes.

Fixes: 08e05d1fce5c ("ti-adc081c: Initial triggered buffer support")
Reported-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Cc: <Stable@vger.kernel.org>
2020-08-31 10:47:41 +01:00
Gustavo A. R. Silva
df561f6688 treewide: Use fallthrough pseudo-keyword
Replace the existing /* fall through */ comments and its variants with
the new pseudo-keyword macro fallthrough[1]. Also, remove unnecessary
fall-through markings when it is the case.

[1] https://www.kernel.org/doc/html/v5.7/process/deprecated.html?highlight=fallthrough#implicit-switch-case-fall-through

Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
2020-08-23 17:36:59 -05:00
Michael Walle
e3ea4192d8 iio: adc: rockchip_saradc: select IIO_TRIGGERED_BUFFER
The kernel fails to compile due to undefined reference to
devm_iio_triggered_buffer_setup() if IIO_TRIGGERED_BUFFER is not
enabled. The original patch [1] had this dependency. But somehow it
didn't make it into the kernel tree. Re-add it.

[1] https://lore.kernel.org/lkml/20200623233011.2319035-3-heiko@sntech.de/

Fixes: 4e130dc7b413 ("iio: adc: rockchip_saradc: Add support iio buffers")
Signed-off-by: Michael Walle <michael@walle.cc>
Reviewed-by: Heiko Stuebner <heiko.stuebner@theobroma-systems.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2020-08-22 11:38:45 +01:00
Maxim Kochetkov
e71e6dbe96 iio: adc: ti-ads1015: fix conversion when CONFIG_PM is not set
To stop conversion ads1015_set_power_state() function call unimplemented
function __pm_runtime_suspend() from pm_runtime_put_autosuspend()
if CONFIG_PM is not set.
In case of CONFIG_PM is not set: __pm_runtime_suspend() returns -ENOSYS,
so ads1015_read_raw() failed because ads1015_set_power_state() returns an
error.

If CONFIG_PM is disabled, there is no need to start/stop conversion.
Fix it by adding return 0 function variant if CONFIG_PM is not set.

Signed-off-by: Maxim Kochetkov <fido_max@inbox.ru>
Fixes: ecc24e72f437 ("iio: adc: Add TI ADS1015 ADC driver support")
Tested-by: Maxim Kiselev <bigunclemax@gmail.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2020-08-22 11:38:44 +01:00
Jonathan Cameron
d0d7c5845e Merge branch 'ib-5.8-jz47xx-ts' into HEAD
Immutable branch may be needed in input for a joystick set that is
dependent on it.
2020-07-22 14:36:31 +01:00
Alexandru Ardelean
951ad47003 iio: adc: ad7124: move chip ID & name on the chip_info table
This change does the following:
* removes the SPI device table in favor of the OF device table
* adds 'name' && 'chip_id' fields to chip_info
* implements chip ID & silicon revision checking; the device ID for
  AD7124-4 is 0x0, so just checking that value can be useless;
  but at least the silicon revision isn't 0, so a non-zero value can be
  used to check that "a" device is on the SPI bus; it's probably the best
  way to narrow it down to one of the 2 AD7124 chip IDs

Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2020-07-22 14:36:05 +01:00
Artur Rojek
b96952f498 IIO: Ingenic JZ47xx: Add touchscreen mode.
The SADC component in JZ47xx SoCs provides support for touchscreen
operations (pen position and pen down pressure) in single-ended and
differential modes.

The touchscreen component of SADC takes a significant time to stabilize
after first receiving the clock and a delay of 50ms has been empirically
proven to be a safe value before data sampling can begin.

Of the known hardware to use this controller, GCW Zero and Anbernic RG-350
utilize the touchscreen mode by having their joystick(s) attached to the
X/Y positive/negative input pins.

JZ4770 and later SoCs introduce a low-level command feature. With it, up
to 32 commands can be programmed, each one corresponding to a sampling
job. It allows to change the low-voltage reference, the high-voltage
reference, have them connected to VCC, GND, or one of the X-/X+ or Y-/Y+
pins.

This patch introduces support for 6 stream-capable channels:
- channel #0 samples X+/GND
- channel #1 samples Y+/GND
- channel #2 samples X-/GND
- channel #3 samples Y-/GND
- channel #4 samples X+/X-
- channel #5 samples Y+/Y-

Being able to sample X-/GND and Y-/GND is useful on some devices, where
one joystick is connected to the X+/Y+ pins, and a second joystick is
connected to the X-/Y- pins.

All the boards which probe this driver have the interrupt provided from
Device Tree, with no need to handle a case where the IRQ was not provided.

Co-developed-by: Paul Cercueil <paul@crapouillou.net>
Signed-off-by: Paul Cercueil <paul@crapouillou.net>
Signed-off-by: Artur Rojek <contact@artur-rojek.eu>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2020-07-20 10:28:39 +01:00
Paul Cercueil
6a294b41ab iio/adc: ingenic: Retrieve channels list from soc data struct
Instead of having one array of struct iio_chan_spec for all SoCs, and
have some SoCs remove the last item of the array as they can't use it,
have each SoC define its array of supported channels.

Signed-off-by: Paul Cercueil <paul@crapouillou.net>
Tested-by: Artur Rojek <contact@artur-rojek.eu>
Signed-off-by: Artur Rojek <contact@artur-rojek.eu>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2020-07-20 10:26:50 +01:00
Artur Rojek
155e41efe7 IIO: Ingenic JZ47xx: Add xlate cb to retrieve correct channel idx
Provide an of_xlate callback in order to retrieve the correct channel
specifier index from the IIO channels array.

Signed-off-by: Artur Rojek <contact@artur-rojek.eu>
Tested-by: Paul Cercueil <paul@crapouillou.net>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2020-07-20 10:25:32 +01:00
Artur Rojek
1a99dc4679 IIO: Ingenic JZ47xx: Error check clk_enable calls.
Introduce error checks for the clk_enable calls used in this driver.
As part of the changes, move clk_enable/clk_disable calls out of
ingenic_adc_set_config and into respective logic of its callers.

Signed-off-by: Artur Rojek <contact@artur-rojek.eu>
Tested-by: Paul Cercueil <paul@crapouillou.net>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2020-07-20 10:24:01 +01:00
Alexandru Ardelean
3eca1d26db iio: adc: ad7192: move ad7192_of_match table closer to the end of the file
The change is more cosmetic. There is no need to reference this table in
the probe function since 'of_device_get_match_data' is used, which obtains
this information from the driver object.

Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2020-07-20 09:03:37 +01:00
Lee Jones
2c7c8dce36 iio: adc: rockchip_saradc: Demote seemingly unintentional kerneldoc header
This is the only use of kerneldoc in the source file and no
descriptions are provided.

Fixes the following W=1 kernel build warning(s):

 drivers/iio/adc/rockchip_saradc.c:190: warning: Function parameter or member 'reset' not described in 'rockchip_saradc_reset_controller'

Cc: Philipp Zabel <p.zabel@pengutronix.de>
Cc: linux-rockchip@lists.infradead.org
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2020-07-20 09:03:35 +01:00
Lee Jones
8f0f0f2cd2 iio: adc: qcom-pm8xxx-xoadc: Demote standard comment block and supply missing description
Kerneldoc is only suitable for documenting functions and struct/enums.

Fixes the following W=1 kernel build warning(s):

 drivers/iio/adc/qcom-pm8xxx-xoadc.c:133: warning: Excess function parameter 'PM8XXX_CHANNEL_INTERNAL' description in 'PM8XXX_CHANNEL_INTERNAL'
 drivers/iio/adc/qcom-pm8xxx-xoadc.c:133: warning: Excess function parameter 'PM8XXX_CHANNEL_125V' description in 'PM8XXX_CHANNEL_INTERNAL'
 drivers/iio/adc/qcom-pm8xxx-xoadc.c:133: warning: Excess function parameter 'PM8XXX_CHANNEL_INTERNAL_2' description in 'PM8XXX_CHANNEL_INTERNAL'
 drivers/iio/adc/qcom-pm8xxx-xoadc.c:133: warning: Excess function parameter 'PM8XXX_CHANNEL_MUXOFF' description in 'PM8XXX_CHANNEL_INTERNAL'
 drivers/iio/adc/qcom-pm8xxx-xoadc.c:412: warning: Function parameter or member 'variant' not described in 'pm8xxx_xoadc'

Cc: Andy Gross <agross@kernel.org>
Cc: Bjorn Andersson <bjorn.andersson@linaro.org>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: linux-arm-msm@vger.kernel.org
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2020-07-20 09:03:31 +01:00
Lee Jones
315482a522 iio: adc: palmas_gpadc: Demote non-conforming kerneldoc header
Very few of the struct attributes have been documented here.

Fixes the following W=1 kernel build warning(s):

 drivers/iio/adc/palmas_gpadc.c:114: warning: Function parameter or member 'dev' not described in 'palmas_gpadc'
 drivers/iio/adc/palmas_gpadc.c:114: warning: Function parameter or member 'palmas' not described in 'palmas_gpadc'
 drivers/iio/adc/palmas_gpadc.c:114: warning: Function parameter or member 'irq' not described in 'palmas_gpadc'
 drivers/iio/adc/palmas_gpadc.c:114: warning: Function parameter or member 'irq_auto_0' not described in 'palmas_gpadc'
 drivers/iio/adc/palmas_gpadc.c:114: warning: Function parameter or member 'irq_auto_1' not described in 'palmas_gpadc'
 drivers/iio/adc/palmas_gpadc.c:114: warning: Function parameter or member 'adc_info' not described in 'palmas_gpadc'
 drivers/iio/adc/palmas_gpadc.c:114: warning: Function parameter or member 'conv_completion' not described in 'palmas_gpadc'
 drivers/iio/adc/palmas_gpadc.c:114: warning: Function parameter or member 'wakeup1_data' not described in 'palmas_gpadc'
 drivers/iio/adc/palmas_gpadc.c:114: warning: Function parameter or member 'wakeup2_data' not described in 'palmas_gpadc'
 drivers/iio/adc/palmas_gpadc.c:114: warning: Function parameter or member 'wakeup1_enable' not described in 'palmas_gpadc'
 drivers/iio/adc/palmas_gpadc.c:114: warning: Function parameter or member 'wakeup2_enable' not described in 'palmas_gpadc'

Cc: Pradeep Goudagunta <pgoudagunta@nvidia.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2020-07-20 09:03:28 +01:00
Lee Jones
922fdc1990 iio: adc: max9611: Demote obvious misuse of kerneldoc to standard comment blocks
No attempt has been made to document any of the demoted structs here.

Fixes the following W=1 kernel build warning(s):

 drivers/iio/adc/max9611.c:117: warning: cannot understand function prototype: 'const unsigned int max9611_mux_conf[][2] = '
 drivers/iio/adc/max9611.c:145: warning: cannot understand function prototype: 'const unsigned int max9611_gain_conf[][2] = '

Cc: Jacopo Mondi <jacopo+renesas@jmondi.org>
Cc: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2020-07-20 09:03:27 +01:00
Lee Jones
ea448671e4 iio: adc: max1363: Fix kerneldoc attribute formatting for 'lock'
Kerneldoc expects attributes/parameters to be in '@*.: ' format.

Fixes the following W=1 kernel build warning(s):

 drivers/iio/adc/max1363.c:190: warning: Function parameter or member 'lock' not described in 'max1363_state'

Cc: Liam Girdwood <lgirdwood@gmail.com>
Cc: Mark Brown <broonie@kernel.org>
Cc: Rohit Sarkar <rohitsarkar5398@gmail.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2020-07-20 09:03:27 +01:00
Lee Jones
95d61a6780 iio: adc: cpcap-adc: Demote seemingly unintentional kerneldoc header
None of the headers demoted here provide any descriptions.

Fixes the following W=1 kernel build warning(s):

 drivers/iio/adc/cpcap-adc.c💯 warning: Function parameter or member 'ato_in' not described in 'cpcap_adc_ato'
 drivers/iio/adc/cpcap-adc.c💯 warning: Function parameter or member 'atox_in' not described in 'cpcap_adc_ato'
 drivers/iio/adc/cpcap-adc.c💯 warning: Function parameter or member 'adc_ps_factor_in' not described in 'cpcap_adc_ato'
 drivers/iio/adc/cpcap-adc.c💯 warning: Function parameter or member 'atox_ps_factor_in' not described in 'cpcap_adc_ato'
 drivers/iio/adc/cpcap-adc.c💯 warning: Function parameter or member 'ato_out' not described in 'cpcap_adc_ato'
 drivers/iio/adc/cpcap-adc.c💯 warning: Function parameter or member 'atox_out' not described in 'cpcap_adc_ato'
 drivers/iio/adc/cpcap-adc.c💯 warning: Function parameter or member 'adc_ps_factor_out' not described in 'cpcap_adc_ato'
 drivers/iio/adc/cpcap-adc.c💯 warning: Function parameter or member 'atox_ps_factor_out' not described in 'cpcap_adc_ato'
 drivers/iio/adc/cpcap-adc.c:153: warning: Enum value 'CPCAP_ADC_AD0' not described in enum 'cpcap_adc_channel'
 drivers/iio/adc/cpcap-adc.c:153: warning: Enum value 'CPCAP_ADC_BATTP' not described in enum 'cpcap_adc_channel'
 drivers/iio/adc/cpcap-adc.c:153: warning: Enum value 'CPCAP_ADC_VBUS' not described in enum 'cpcap_adc_channel'
 drivers/iio/adc/cpcap-adc.c:153: warning: Enum value 'CPCAP_ADC_AD3' not described in enum 'cpcap_adc_channel'
 drivers/iio/adc/cpcap-adc.c:153: warning: Enum value 'CPCAP_ADC_BPLUS_AD4' not described in enum 'cpcap_adc_channel'
 drivers/iio/adc/cpcap-adc.c:153: warning: Enum value 'CPCAP_ADC_CHG_ISENSE' not described in enum 'cpcap_adc_channel'
 drivers/iio/adc/cpcap-adc.c:153: warning: Enum value 'CPCAP_ADC_BATTI' not described in enum 'cpcap_adc_channel'
 drivers/iio/adc/cpcap-adc.c:153: warning: Enum value 'CPCAP_ADC_USB_ID' not described in enum 'cpcap_adc_channel'
 drivers/iio/adc/cpcap-adc.c:153: warning: Enum value 'CPCAP_ADC_AD8' not described in enum 'cpcap_adc_channel'
 drivers/iio/adc/cpcap-adc.c:153: warning: Enum value 'CPCAP_ADC_AD9' not described in enum 'cpcap_adc_channel'
 drivers/iio/adc/cpcap-adc.c:153: warning: Enum value 'CPCAP_ADC_LICELL' not described in enum 'cpcap_adc_channel'
 drivers/iio/adc/cpcap-adc.c:153: warning: Enum value 'CPCAP_ADC_HV_BATTP' not described in enum 'cpcap_adc_channel'
 drivers/iio/adc/cpcap-adc.c:153: warning: Enum value 'CPCAP_ADC_TSX1_AD12' not described in enum 'cpcap_adc_channel'
 drivers/iio/adc/cpcap-adc.c:153: warning: Enum value 'CPCAP_ADC_TSX2_AD13' not described in enum 'cpcap_adc_channel'
 drivers/iio/adc/cpcap-adc.c:153: warning: Enum value 'CPCAP_ADC_TSY1_AD14' not described in enum 'cpcap_adc_channel'
 drivers/iio/adc/cpcap-adc.c:153: warning: Enum value 'CPCAP_ADC_TSY2_AD15' not described in enum 'cpcap_adc_channel'
 drivers/iio/adc/cpcap-adc.c:153: warning: Enum value 'CPCAP_ADC_BATTP_PI16' not described in enum 'cpcap_adc_channel'
 drivers/iio/adc/cpcap-adc.c:153: warning: Enum value 'CPCAP_ADC_BATTI_PI17' not described in enum 'cpcap_adc_channel'
 drivers/iio/adc/cpcap-adc.c:153: warning: Enum value 'CPCAP_ADC_CHANNEL_NUM' not described in enum 'cpcap_adc_channel'
 drivers/iio/adc/cpcap-adc.c:165: warning: Enum value 'CPCAP_ADC_TIMING_IMM' not described in enum 'cpcap_adc_timing'
 drivers/iio/adc/cpcap-adc.c:165: warning: Enum value 'CPCAP_ADC_TIMING_IN' not described in enum 'cpcap_adc_timing'
 drivers/iio/adc/cpcap-adc.c:165: warning: Enum value 'CPCAP_ADC_TIMING_OUT' not described in enum 'cpcap_adc_timing'

Cc: Tony Lindgren <tony@atomide.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2020-07-20 09:03:23 +01:00
Lee Jones
62eebcb67d iio: adc: at91-sama5d2_adc: Struct kerneldoc titles need to start with 'struct '
Fixes the following W=1 kernel build warning(s):

 drivers/iio/adc/at91-sama5d2_adc.c:360: warning: cannot understand function prototype: 'struct at91_adc_dma '
 drivers/iio/adc/at91-sama5d2_adc.c:379: warning: cannot understand function prototype: 'struct at91_adc_touch '

Cc: Ludovic Desroches <ludovic.desroches@microchip.com>
Cc: Eugen Hristev <eugen.hristev@microchip.com>
Cc: Nicolas Ferre <nicolas.ferre@microchip.com>
Cc: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2020-07-20 09:03:22 +01:00
Lee Jones
4ab559a6c4 iio: adc: at91_adc: Fix 'bad line' warning
All lines should start with ' *'.

Fixes the following W=1 kernel build warning(s):

 drivers/iio/adc/at91_adc.c:160: warning: bad line:                         (Interruptions registers mostly)

Cc: Nicolas Ferre <nicolas.ferre@microchip.com>
Cc: Alexandre Belloni <alexandre.belloni@bootlin.com>
Cc: Ludovic Desroches <ludovic.desroches@microchip.com>
Cc: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2020-07-20 09:03:22 +01:00
Lee Jones
7574f1b4c3 iio: adc: ad799x: Demote seemingly unintentional kerneldoc header
This is the only use of function related kerneldoc in the sourcefile
and no descriptions are provided.

Fixes the following W=1 kernel build warning(s):

 drivers/iio/adc/ad799x.c:192: warning: Function parameter or member 'irq' not described in 'ad799x_trigger_handler'
 drivers/iio/adc/ad799x.c:192: warning: Function parameter or member 'p' not described in 'ad799x_trigger_handler'

Cc: Michael Hennerich <Michael.Hennerich@analog.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2020-07-20 09:03:20 +01:00
Lee Jones
dd54f40ac3 iio: adc: twl6030-gpadc: Fix some misdocumentation and formatting issues
Kerneldoc expects attributes/parameters to be in '@*.: ' format.

Fixes the following W=1 kernel build warning(s):

 drivers/iio/adc/twl6030-gpadc.c:110: warning: Function parameter or member 'ideal' not described in 'twl6030_gpadc_platform_data'
 drivers/iio/adc/twl6030-gpadc.c:110: warning: Function parameter or member 'channel_to_reg' not described in 'twl6030_gpadc_platform_data'

Cc: Stephen Boyd <swboyd@chromium.org>
Cc: Nishant Kamat <nskamat@ti.com>
Cc: Balaji T K <balajitk@ti.com>
Cc: Graeme Gregory <gg@slimlogic.co.uk>
Cc: Girish S Ghongdemath <girishsg@ti.com>
Cc: Ambresh K <ambresh@ti.com>
Cc: Oleksandr Kozaruk <oleksandr.kozaruk@ti.com>
Cc: Mikko Ylinen <mikko.k.ylinen@nokia.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2020-07-20 09:03:15 +01:00
Lee Jones
2006cf16e6 iio: adc: twl4030-madc: Fix misnamed struct attribute
Fixes the following W=1 kernel build warning(s):

 drivers/iio/adc/twl4030-madc.c:170: warning: Function parameter or member 'usb3v1' not described in 'twl4030_madc_data'

Also drop a duplicate description of the lock.

Cc: J Keerthy <j-keerthy@ti.com>
Cc: Mikko Ylinen <mikko.k.ylinen@nokia.com>
Cc: Amit Kucheria <amit.kucheria@canonical.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2020-07-20 09:03:14 +01:00
Lee Jones
8856d5c741 iio: adc: twl4030-madc: Remove set but unused variables 'len'
Fixes the following W=1 kernel build warning(s):

 drivers/iio/adc/twl4030-madc.c: In function ‘twl4030_madc_threaded_irq_handler’:
 drivers/iio/adc/twl4030-madc.c:475:9: warning: variable ‘len’ set but not used [-Wunused-but-set-variable]
 475 | int i, len, ret;
 | ^~~

Cc: Sebastian Reichel <sre@kernel.org>
Cc: J Keerthy <j-keerthy@ti.com>
Cc: Mikko Ylinen <mikko.k.ylinen@nokia.com>
Cc: Amit Kucheria <amit.kucheria@canonical.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2020-07-20 09:03:13 +01:00
Lee Jones
f83d87a0d6 iio: adc: ti_am335x_adc: Remove a couple of unused 'read' variables
Fixes the following W=1 kernel build warning(s):

 drivers/iio/adc/ti_am335x_adc.c: In function ‘tiadc_buffer_preenable’:
 drivers/iio/adc/ti_am335x_adc.c:297:21: warning: variable ‘read’ set but not used [-Wunused-but-set-variable]
 297 | int i, fifo1count, read;
 | ^~~~
 drivers/iio/adc/ti_am335x_adc.c: In function ‘tiadc_buffer_predisable’:
 drivers/iio/adc/ti_am335x_adc.c:346:21: warning: variable ‘read’ set but not used [-Wunused-but-set-variable]
 346 | int fifo1count, i, read;
 | ^~~~

Cc: Rachna Patil <rachna@ti.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2020-07-20 09:03:11 +01:00
Lee Jones
05eb6d32dd iio: adc: ad7887: Demote seemingly unintentional kerneldoc header
This is the only use of function related kerneldoc in the sourcefile
and no descriptions are provided.

Fixes the following W=1 kernel build warning(s):

 drivers/iio/adc/ad7887.c:119: warning: Function parameter or member 'irq' not described in 'ad7887_trigger_handler'
 drivers/iio/adc/ad7887.c:119: warning: Function parameter or member 'p' not described in 'ad7887_trigger_handler'

Cc: Michael Hennerich <Michael.Hennerich@analog.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2020-07-20 09:02:57 +01:00
Lee Jones
700b60e1c8 iio: adc: ad7923: Demote obvious misuse of kerneldoc to standard comment blocks
No attempt has been made to document either of the demoted functions here

Fixes the following W=1 kernel build warning(s):

 drivers/iio/adc/ad7923.c:159: warning: Function parameter or member 'indio_dev' not described in 'ad7923_update_scan_mode'
 drivers/iio/adc/ad7923.c:159: warning: Function parameter or member 'active_scan_mask' not described in 'ad7923_update_scan_mode'
 drivers/iio/adc/ad7923.c:202: warning: Function parameter or member 'irq' not described in 'ad7923_trigger_handler'
 drivers/iio/adc/ad7923.c:202: warning: Function parameter or member 'p' not described in 'ad7923_trigger_handler'

Cc: Michael Hennerich <Michael.Hennerich@analog.com>
Cc: Patrick Vasseur <patrick.vasseur@c-s.fr>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2020-07-20 09:02:49 +01:00
Lee Jones
b5d214deac iio: adc: ad7298: Demote obvious misuse of kerneldoc to standard comment blocks
No attempt has been made to document either of the demoted functions here.

Fixes the following W=1 kernel build warning(s):

 drivers/iio/adc/ad7298.c:106: warning: Function parameter or member 'indio_dev' not described in 'ad7298_update_scan_mode'
 drivers/iio/adc/ad7298.c:106: warning: Function parameter or member 'active_scan_mask' not described in 'ad7298_update_scan_mode'
 drivers/iio/adc/ad7298.c:154: warning: Function parameter or member 'irq' not described in 'ad7298_trigger_handler'
 drivers/iio/adc/ad7298.c:154: warning: Function parameter or member 'p' not described in 'ad7298_trigger_handler'

Cc: Michael Hennerich <Michael.Hennerich@analog.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2020-07-20 09:02:49 +01:00